0.8 Carat Radiant Lab Grown Diamond Prices Comparison
As of February 2026, 0.8 carat radiant lab grown diamonds usually range from $253 to $1,240, with an average price of $417.In the last month, prices for these diamonds are down 1%.Compare 893 verified listings across 7 retailers tracked by CaratRadar.
0.8 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 893 verified 0.8-carat radiant lab grown diamonds listed across 7 online retailers. Prices in this segment range from $253 to $1,240, with an average asking price of $417 and a median of $395.
The price spread of $987 (79.6% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
893 diamonds tracked in this segment
Price range: $253 to $1,240
Average price: $417
Median price: $395
Available across 7 retailers
Savings potential: up to 79.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
893
$253
$417
$395
$1,240
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 73.9%0.75ct | Radiant | E | VVS1 | Very Good
From $381
Compare at $1,460
IGISave 72.2%0.75ct | Radiant | E | VS1 | Very Good
From $568
Compare at $2,040
IGISave 75.6%0.75ct | Radiant | D | SI1 | Very Good
From $356
Compare at $1,460
IGISave 50.4%0.75ct | Radiant | E | VVS2 | Ideal
From $372
Compare at $750
IGISave 33.1%0.75ct | Radiant | FANCY | VVS2 | Ideal
From $648
Compare at $968
IGISave 33.1%0.75ct | Radiant | FANCY | VVS2 | Ideal
From $648
Compare at $968
IGISave 41.2%0.75ct | Radiant | D | VVS2 | Ideal
From $975
Compare at $1,658
IGISave 75.9%0.75ct | Radiant | E | VS1 | Ideal
From $344
Compare at $1,430
IGISave 69.5%0.75ct | Radiant | D | VVS1 | Excellent
From $427
Compare at $1,400
IGISave 68.1%0.75ct | Radiant | E | VVS2 | Ideal
From $396
Compare at $1,240
IGISave 68%0.75ct | Radiant | D | VS1 | Ideal
From $393
Compare at $1,230
IGISave 68.1%0.75ct | Radiant | E | VVS2 | Ideal
From $396
Compare at $1,240
IGISave 59.5%0.75ct | Radiant | E | VVS1 | Ideal
From $387
Compare at $956
IGISave 51.9%0.75ct | Radiant | E | VS1 | Very Good
From $346
Compare at $720
IGISave 52%0.75ct | Radiant | E | VS1 | Excellent
From $346
Compare at $720
IGISave 53.1%0.75ct | Radiant | D | VS1 | Excellent
From $366
Compare at $780
IGISave 18.7%0.75ct | Radiant | E | VS1 | Very Good
From $375
Compare at $461
IGISave 18.6%0.75ct | Radiant | D | VS1 | Excellent
From $394
Compare at $484
IGISave 43.8%0.75ct | Radiant | D | VVS2 | Very Good
From $394
Compare at $700
IGISave 29.2%0.75ct | Radiant | E | VS2 | Excellent
From $375
Compare at $530
IGISave 66.7%0.75ct | Radiant | D | VVS2 | Excellent
From $378
Compare at $1,134
IGISave 51.4%0.75ct | Radiant | D | VS1 | Ideal
From $378
Compare at $778
IGISave 60.7%0.75ct | Radiant | D | IF | Ideal
From $647
Compare at $1,646
IGISave 54.9%0.75ct | Radiant | D | IF | Ideal
From $718
Compare at $1,592
IGISave 41.6%0.75ct | Radiant | E | VVS2 | Ideal
From $357
Compare at $611
IGISave 49.3%0.75ct | Radiant | E | VVS2 | Excellent
From $375
Compare at $740
IGISave 56.9%0.75ct | Radiant | D | VVS2 | Ideal
From $378
Compare at $877
IGISave 52.5%0.75ct | Radiant | E | VS1 | Ideal
From $372
Compare at $782
IGISave 50.2%0.75ct | Radiant | D | VS1 | Excellent
From $394
Compare at $790
IGISave 43.2%0.75ct | Radiant | G | VVS2 | Good
From $375
Compare at $660
IGISave 74.5%0.75ct | Radiant | E | VS1 | Very Good
From $329
Compare at $1,290
IGISave 58.5%0.75ct | Radiant | E | VVS2 | Very Good
From $319
Compare at $770
IGISave 44.6%0.75ct | Radiant | D | VS1 | Ideal
From $375
Compare at $676
IGISave 72.8%0.75ct | Radiant | G | VVS2 | Excellent
From $378
Compare at $1,390
IGISave 72.8%0.75ct | Radiant | E | VS1 | Excellent
From $381
Compare at $1,400
IGISave 69.5%0.75ct | Radiant | D | VVS1 | Excellent
From $427
Compare at $1,400
IGISave 53.1%0.75ct | Radiant | D | VS1 | Excellent
From $366
Compare at $780
IGISave 61.8%0.75ct | Radiant | F | VVS2 | Ideal
From $338
Compare at $885
IGISave 67.9%0.75ct | Radiant | D | VS1 | Ideal
From $430
Compare at $1,340
IGISave 29.2%0.75ct | Radiant | E | VVS2 | Excellent
From $375
Compare at $530
IGISave 45.7%0.75ct | Radiant | F | VS1 | Good
From $375
Compare at $690
IGISave 39.5%0.75ct | Radiant | D | VS2 | Excellent
From $375
Compare at $620
IGISave 50.2%0.75ct | Radiant | D | VS1 | Excellent
From $394
Compare at $790
IGISave 37.5%0.75ct | Radiant | E | VVS2 | Excellent
From $375
Compare at $600
IGISave 51%0.75ct | Radiant | D | VVS1 | Ideal
From $397
Compare at $810
IGISave 42.1%0.75ct | Radiant | D | VVS2 | Excellent
From $379
Compare at $655
IGISave 60.7%0.75ct | Radiant | D | IF | Very Good
From $647
Compare at $1,646
IGISave 47.4%0.75ct | Radiant | D | VS1 | Ideal
From $356
Compare at $677
IGISave 18.7%0.75ct | Radiant | E | VS1 | Excellent
From $375
Compare at $461
IGISave 41%0.75ct | Radiant | E | VS1 | Very Good
From $341
Compare at $578
Entry pricing in this category starts around $253.
What to Know When Shopping for 0.8 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $987 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $395 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 893 comparable stones in this segment. Prices start around $253 and go up to $1,240.
Based on the latest market data, the average asking price is about $417 with a median around $395.
The observed spread is roughly $987 across tracked listings, which is about 79.6% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $395, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 7 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $987 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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